I modeled this openbuilds corner angle to print and mount 2020 Aluminium Extrusion on a 3d Printer.
It is not intended for heavy things, just small an light things.
Rounded the corners of to get it to print nicely.
Print it as imported into your slicer
Prusa Mini
Esun ABS+
4 Outlines
40% Infill
5 Top and Bottom Layers
The author hasn't provided the model origin yet.